package cn.scw.common;

import com.aspose.cells.License;
import com.aspose.cells.SaveFormat;
import com.aspose.cells.Workbook;

import java.io.*;

/**
 * 由于ASPOSE比较吃内存，操作大一点的文件就会堆溢出，所以请先设置好java虚拟机参数：-Xms512m -Xmx512m(参考值)<br>
 */
public class Excel2PdfUtil {

    /**
     * @param args
     */
    public static void main(String[] args) {
        excel2Pdf("D://111111.xlsx", "D://report.pdf");
    }

    /**
     * 获取license
     *
     * @return
     */
    private static boolean getLicense() {
        boolean result = false;
        try {
            InputStream license = Excel2PdfUtil.class.getClassLoader().getResourceAsStream("\\license.xml");// license路径
            License aposeLic = new License();
            aposeLic.setLicense(license);
            result = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

    public static void excel2Pdf(String excelPath, String pdfPath) {
        long old = System.currentTimeMillis();
        // 验证License
        if (!getLicense()) {
            return;
        }
        FileInputStream fileInputStream = null;
        FileOutputStream fileOutputStream = null;
        try {
            File excelFile = new File(excelPath);
            if (excelFile.exists()) {
                fileInputStream = new FileInputStream(excelFile);
                Workbook workbook = new Workbook(fileInputStream);
                File pdfFile = new File(pdfPath);
                fileOutputStream = new FileOutputStream(pdfFile);
                workbook.save(fileOutputStream, SaveFormat.PDF);
                long now = System.currentTimeMillis();
                System.out.println("共耗时：" + ((now - old) / 1000.0) + "秒\n\n" + "文件保存在:" + pdfFile.getPath());
            } else {
                System.out.println("文件不存在");
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (fileInputStream != null) {
                try {
                    fileInputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (fileOutputStream != null) {
                try {
                    fileOutputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}